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Audiobits HIFI Distributor: Relay Volume Attenuator
Passive XLR balanced passive Volume control module with 256-level relay
Digital volume control circuit using MAX5486. 2 channels, balance and
Relay Volume Control Input Selector Board 50K - Audiophonics
Relay Volume Control Input Selector Board 50K - Audiophonics
HiFi 128 Steps Remote Volume Control Board Relay Pure Resistor Shunt
T-674F Volume Control With Relay - Volume Control & Attenuator - Public